util_json_keys
Delx first-party micro-utility util_json_keys at $0.001 USDC.
This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/util-json-keys.md
What util_json_keys does on Delx MCP Server
AI agents call util_json_keys to retrieve information from Delx MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
json_text | string | Yes | json_text |
Parameters from the server's own tool schema.
Why util_json_keys is rated Low
This appears to be a simple JSON parsing/utility function that retrieves or inspects JSON keys—a read-only operation with no side effects on data or systems. The low severity reflects minimal blast radius if misused by an AI agent; it can only return information about JSON structure. Confidence is high because the name and context are clear, though the description is minimal.
From the tool's definition Tool name 'util_json_keys' and description indicate a micro-utility for JSON key extraction/inspection. The prefix 'util_' suggests a utility function.
Attacks that exploit this kind of access
The rule that runs util_json_keys safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Delx MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For util_json_keys, this is the rule to start with:
util_json_keys is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Delx MCP Server, apply this rule, and every util_json_keys call is checked against it from then on.
Questions about util_json_keys
Delx first-party micro-utility util_json_keys at $0.001 USDC. It is categorised as a Read tool in the Delx MCP Server MCP Server, which means it retrieves data without modifying state.
util_json_keys accepts 1 parameter: json_text. Required: json_text. The full parameter table on this page comes from the server's own tool schema.
Register the Delx MCP Server MCP server in PolicyLayer and add a rule for util_json_keys: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Delx MCP Server. Nothing to install.
util_json_keys is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the util_json_keys rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for util_json_keys. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
util_json_keys is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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